Data format

JWT Sample Files

JWT (.jwt) files store JSON Web Tokens as base64url-encoded header, payload, and signature segments. Use sample JWT files to test claim validation, expiration handling, signature verification, and auth middleware behavior.

4 files All to 50KB SHA256 verified Manifest included

Download Starter File Download Files

Quick facts

CategoryData

Total Files4

Extension.jwt

MIMEapplication/octet-stream

ManifestJSON

Request Related Coverage

Files first

JWT Sample Files — Download

Starter file

jwt_expired_refresh_token_sample.jwt · 351 B

Download

HS256 Access JWT

Signed JWT fixture for claim and signature validation.

jwt_hs256_access_token_sample.jwt · 365 B

Download Fixture

Expired Refresh JWT

Expired JWT fixture for token lifetime and refresh-path validation.

jwt_expired_refresh_token_sample.jwt · 351 B

Download Fixture

Invalid-Signature JWT

Malformed-signature JWT fixture for negative auth-path checks.

jwt_invalid_signature_sample.jwt · 347 B

Download

Sort

All (4) 50KB (4)

50KB JWT

Filename	Size	MIME	Download
jwt_expired_refresh_token_sample.jwt .jwt Realistic Starter `SHA256 11af1edda374...`	351 B	`application/octet-stream`	Download
jwt_hs256_access_token_sample.jwt .jwt Realistic `SHA256 210386f5a7b4...`	365 B	`application/octet-stream`	Download
jwt_invalid_signature_sample.jwt .jwt Edge `SHA256 2ac8f2d916db...`	347 B	`application/octet-stream`	Download
jwt_service_claims_token_sample.jwt .jwt Realistic `SHA256 ed5020bec3c7...`	500 B	`application/octet-stream`	Download

Use cases

JWT Testing Workflows

Token Claim Preview and Validation

JWT for Token Claim Preview and Validation

Open Format JWT

Expiry and Signature Failure Review

JWT for Expiry and Signature Failure Review

Open Format JWT

Compare and decide

JWT Format Comparisons

More data formats: SQL YAML ENV GRAPHQL INI JSONL

FAQ and reference

JWT File FAQ

Checksum Verification

Use checksums to confirm file integrity after download.

shasum -a 256 your_file_name_here
# Compare output with SHA256 values listed above.

Where is the machine-readable manifest?

Use the manifest when you need stable names, SHA256 values, and URLs for automation.

Manifest

Validation Methodology

Validate extension and MIME detection before processing.
Benchmark performance with small and larger files.
Test malformed-input handling and error messaging.

Fixture Matrix

Use the curated JWT matrix to choose the right clean, edge-case, and broken fixtures for this format.

Open Matrix

Workflow Packs

Auth Token Validation Pack Signed Request Inspection Pack

Edge-Case Fixtures

Invalid-Signature JWT

Download Starter Jump to files